Title :
Bandwidth reconfigurable bandstop filter using planar EBG structure
Author :
Kurra, Lalithendra ; Abegaonkar, Mahesh P. ; Basu, Anirban ; Koul, S.K.
Author_Institution :
Centre for Appl. Res. in Electron., Indian Inst. of Technol. Delhi, New Delhi, India
Abstract :
In this paper, bandwidth reconfigurable bandstop filter using uni-planar electromagnetic bandgap (EBG) structure is proposed. Bandstop filter is fabricated by loading microstrip transmission line with periodic uni-planar EBG structure. The loaded EBG cells are not connected to each other, with and without connecting EBG cells the bandwidth of the stop band is varied. The PIN diodes are used to connect and disconnect the EBG cells. The measured 10-dB bandwidth of the stop band in the on state is from 6.41 GHz to 7.33 GHz and in the off state is from 6.84 GHz to 7.47 GHz, 290 MHz change in bandwidth is achieved.
Keywords :
band-stop filters; high-frequency transmission lines; microstrip lines; p-i-n diodes; photonic band gap; PIN diodes; bandwidth 6.41 GHz to 7.47 GHz; bandwidth reconfigurable bandstop filter; microstrip transmission line; planar EBG Structure; uni-planar electromagnetic bandgap structure; Bandwidth; Metamaterials; Microwave circuits; Microwave filters; Periodic structures; Resonator filters; Substrates; Bandstop filter; PIN diodes; bandwidth reconfiguration; electromagnetic band gap (EBG) structures; uniplanar EBG;
Conference_Titel :
Microwave and RF Conference, 2013 IEEE MTT-S International
Conference_Location :
New Delhi
DOI :
10.1109/IMaRC.2013.6777732
